Coax Cable Specifications

Type Specifications Image
RG213 A low loss cable with a non-contaminating jacket
Impedance: 50 ohms Power Handling: 1800 watts 30 MHz and less
Attenuation: 1.2 dB per 100 ft at 30 MHz and less

RG214 A low loss cable with double braid and non-contaminating jacket
Impedance: 50 ohms Power Handling: 1800 watts 30 MHz and less
Attenuation: 1.2 dB per 100 ft at 30 MHz and less

LMR400 This coax cable provides excellent performance for high power HF needs or VHF/UHF applications. Because of its solid center conductor, it is rather stiff -- but there is a more flexible version, it's called LMR-400 Ultra-flex.
Impedance: 50 ohms Power Handling: 2100 watts 30 MHz and less
Attenuation: 0.7 dB per 100 ft at 30 MHz and less

9913 This coax cable provides excellent performance for high power HF needs or VHF/UHF applications. Because of its solid center conductor, it is rather stiff
Impedance: 50 ohms Power Handling: 2200 watts 30 MHz and less
Attenuation: 0.8 dB per 100 ft at 30 MHz and less

RG8X A very flexible cable suitable for HF transmit applications where an amplifier is not used.
Impedance: 50 ohms
Attenuation: 2.0 dB per 100 ft at 30 MHz and less

RG58U This economically priced coax cable is suitable for HF applications where high power and long runs are not required. 
Impedance: 50 ohms
Attenuation: 2.5 dB per 100 ft at 30 MHz and less

While not a coax cable, it seemed appropriate to include a reference to Ladder Line on this page as well

Ladder Line There are three common versions of this 450 ohm 'windowed' line: 18 AWG, solid copper-clad steel (30%) conductors, poly-clad; 16 AWG, 19 strand copper-clad steel conductors, poly-clad and 18 AWG, 16 strand copper-clad steel conductors, poly-clad. ladder_line.jpg (13684 bytes)
Impedance: 450 ohms Power Handling: 1500 watts at 30 MHz and less for the 18 AWG and the 16 AWG variety
Attenuation: NA

To see detailed performance data for a variety of coax cable types, use the Times Microwave Systems
online coax cable calculator
  Attenuation & Power Handling Calculator

Last modified July 06, 2004 by Paul B. Peters, Show contact information
Copyright 2000 -2004 Paul B. Peters, VE7AVV. All rights reserved.